CREST Science Olympiad Class 9 Previous Year Papers

Preparing for the Class 9 Science Olympiad can feel challenging, but using previous year question papers makes a big difference. These papers give students a solid understanding of how questions are framed and what topics to focus on, making revision more targeted.

How These Papers Help

• They cover crucial topics such as Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound etc.
• They improve time management, analytical thinking, and help students handle tricky questions more confidently.
• Answer keys are included to help students review and strengthen weak areas.

Download the Science Olympiad Previous Year Paper for Class 9 (PDF) to support focused revision and help your child step into the exam feeling well-prepared and motivated.

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Syllabus:

Section 1: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of Atom, Cell - The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall Ill, Natural Resources, Improvement in Food Resources.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Sample Paper Previous Year Paper Marking Scheme Free Study Material

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Q.9

Q.10

Q.1	Which of the following options is correct regarding the given statement? A rubber ball and a lead ball having the same mass, strike normally on a smooth vertical wall with the same velocity. The lead balls fall down after striking the wall but the rubber ball bounces back.
	a) The momentum of the rubber ball is greater than that of the lead ball.		b) The momentum of the lead ball is greater than that of the rubber ball.
	c) The rubber ball suffers a greater change in momentum as compared to the lead ball.		d) Both the balls suffer an equal change in momentum.

Q.2	A ball of mass 2 kg is thrown up vertically with a kinetic energy of 490 J. The height at which the kinetic energy of the body becomes half of the original value is _________.  The acceleration due to gravity is 9.8 ms-2.
	a) 50 m		b) 25 m
	c) 12.5 m		d) 10 m

Q.3	A body of mass 90 g is thrown upwards. It rises to a maximum height of 50 m. At what height its kinetic energy will be reduced to 70%?
	a) 15 m		b) 30 m
	c) 60 m		d) 70 m

Q.4	Choose the correct option and complete the following sentence: Two elements X and Y having the same number of valence electrons in their atom will have similar ______________.
	a) metallic character		b) chemical properties
	c) atomic sizes		d) All of the above

Q.5	Fill in the blank: During a planned manoeuvre in a space flight, a free-floating astronaut A pushes another free-floating astronaut B, the mass of A being greater than that of B. Then, the magnitude of the force exerted by astronaut A on astronaut B is ___________.
	a) equal to zero		b) equal to the force exerted by astronaut B on astronaut A
	c) greater than the force exerted by astronaut B on astronaut  A		d) less than the force exerted by astronaut B on astronaut A

Q.6	In the following question, an assertion and the reason are given. Choose the correct option: Assertion: Coal is a combustible organic fuel. Reason: It occurs inside the volcanoes.
	a) Both assertion and reason are true and reason is the correct explanation of assertion.		b) Both assertion and reason are true but the reason is not the correct explanation of assertion.
	c) Assertion is true but reason is false.		d) Assertion is false but reason is true.

Q.7	Which of the following concepts was not considered in Rutherford's atomic model?
	a) The electrical neutrality of atom.		b) The quantization of energy.
	c) Electrons revolve around the nucleus at very high speeds.		d) Existence of nuclear forces of attraction on the electrons.

Q.8	An ionic compound is a poor conductor of electricity. Which of the following is the reason for this?
	a) Ions do not conduct electricity.		b) Charge on the ions is uniformly distributed.
	c) Ions occupy fixed positions in solids.		d) Ions have a uniform field.

Q.9	Fill in the blank: Certain parts of a plant can be bent easily without breaking. This flexibility in certain parts, like leaf and stem, can be attributed to the abundance of __________.
	a) parenchyma		b) collenchyma
	c) sclerenchyma		d) xylem and phloem

Q.10	Which of the following is not a consequence of desertification?
	a) Decrease in the water-holding capacity of soil.		b) Increased chances of floods.
	c) Increase in the temperature of the earth.		d) Decrease in the concentration of carbon dioxide in the atmosphere.

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Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 9 -

1. CREST Science Worksheets Package for class 9 - It is a package of 5 worksheets. The worksheets are in the same pattern as the previous year paper. Hence, very useful for preparation. Existing users can purchase additional practice worksheets by following these steps: Login at https://www.crestolympiads.com/login -> Dashboard -> Additional Practice -> Buy & new users can visit https://www.crestolympiads.com/registration
2. CREST Science Olympiad book for class 9 - The book covers topic-wise reading material, chapter-wise practice questions with answer key & contains the previous year paper. The book is available in both physical and pdf formats. Proceed now to purchase the Olympiad book. Also, students can view & download the first chapter of the Science Olympiad book for class 9 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 9.